Radar Electronics PreView Side Defender SDR8503, Operating Manual, Page: 17 / 24

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Page 14
Troubleshooting
Display Status LED is not illuminated:

Verify that DC power (9-33V) is applied to the sensor.

Verify that the cable between the sensor and display is connected.
Display Status LED and Detection LED are both illuminated:

There is a system error, contact PRECO Electronics
®
.
Detection LED is always illuminated when sensor is mounted:

Verify the sensor is pointing outward from the vehicle in an open
area with no obstructions. This may require removing the mounting
screws and lifting the sensor out away from the side of the vehicle.
If the detection LED is not active when moved away from the
vehicle, but is active when mounted, then the sensors’ mounting
position will have to be moved.
Detection LED is on frequently when driving around and there is nothing
in the detection zone:

The sensor may be detecting a curb. Aim the sensor up about 2 degrees
and check again. Do not aim the sensor up more than 5 degrees from
perpendicular to ground.
Detection buzzer sounds when turn signal is not active:

The harness turn signal wire is being set by other electronics, i.e.,
daytime running lights, air brakes, etc. Check turn signal wire
connection
.
The system is detecting stationary objects above 10mph (16kph):

The sensor is not receiving speed messages over the CAN bus.